Question

NO LINKS!!! Find the area of the shaded figure shown. SHOW WORK PLEASE !! Part 2.

#13, 14, & 15
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Answer 1

Area of whole

• π(4)²
• 16πin²

Area of inner circle

• 2²π
• 4πunits²

Area of shaded region

• 16π-4π
• 12πunits²
• 37.68units²

#14

Area of circle

• π(13)²
• 169π

Area of shaded regions

• 3/8×169π
• 63.375π
• 198.9975in²

#15

Area of square

• 10²
• 100cm²

Area of circle

• π(10/2)²
• 5²π
• 25π
• 78.5cm²

Area of shaded region

• 100-78.5
• 21.5cm²

Answer 2

Area

Find the Area of shaded figure.

Solution:

Problem 13.

• A = π r²
• AB= π (2inch)²
• A = 2 x 2
• A = 4inch π
• As = π(4inch)
• A = 4 x 4
• A = 16inch
• A = 4inch x 3.14 = 12.56
• A = 16inch x 3.14 = 50.24
• A = 50.24 - 12.56
• A = 37.68units²

Problem 14.

• A = Radius ,13²
• A = (3.14)
• A = 13 x 13
• A = 169π
• A = 3/8 x 169 π
• A = 3 × 169
• A = 507
• A = 507 ÷ 8
• A = 63.375π
• A = 63.375 x 3.14
• A = 198.9975 inch²

Problem 15.

• A = π r²
• A = 10cm
• A = 10cm x 10cm
• A = 100cm²
• A = 100 cm² - 78.5
• A = 21.5cm²

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